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प्रश्न
The electricity bill specifies the usage in _______.
पर्याय
kilowatt
joule
volt
unit
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उत्तर
The electricity bill specifies the usage in unit.
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संबंधित प्रश्न
An electric iron of resistance 20 Ω takes a current of 5 A. Calculate the heat developed in 30 s.
An electric heater of resistance 8 Ω draws 15 A from the service mains 2 hours. Calculate the rate at which heat is developed in the heater.
The safety device based on the heating effect of electric current is called a ______.
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(b) How much energy is transferred to the heater each second?
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An electric kettle rated at 220 V, 2.2 kW, works for 3 hours. Find the energy consumed and the current drawn.
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Write down the formula for the heat produced when a current I is passed through a resistor R for time t.
Explain why, tungsten is used for making the filaments of electric bulbs.
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Derive the expression for the heat produced due to a current 'I' flowing for a time interval 't' through a resistor 'R' having a potential difference 'V' across its ends. With which name is this relation known?
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The heat produced by passing an electric current through a fixed resistor is proportional to the square of:
(a) magnitude of resistance of the resistor
(b) temperature of the resistor
(c) magnitude of current
(d) time for which current is passed
An electric fuse works on the:
(a) chemical effect of current
(b) magnetic effect of current
(c) lighting effect of current
(d) heating effect of current
The heat produced in a wire of resistance 'x' when a current 'y' flows through it in time 'z' is given by:
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What property of the filament wire accounts for this difference?
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1 A = ____________ mA.
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______ wire is used in the filament of the bulbs.
Assertion: A current-carrying wire should be charged.
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Define the following:
Electrolyte
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